Question

Cholecystokinin and duocrinin are secreted by

• A. Intestine
• B. Pancreas
• C. Adrenal cortex
• D. Thyroid gland

Answer 1

The correct option is A Intestine

Duocrinin is a gastrointestinal hormone that is secreted by the contact of gastric contents within the intestine and stimulates the secretory activity of the duodenal glands (Brunner glands). Cholecystokinin is synthesized by the cells of the mucosal epithelium of the small intestine and secreted in the duodenum. It causes the release of digestive enzymes and bile from the pancreas and gallbladder, respectively

So, the correct answer is 'Intestine'